Projects / Avalon Wastewater Renewals

Avalon Wastewater renewals

Wellington Water, on behalf of Hutt City Council, are upgrading wastewater pipes in Avalon, Lower Hutt. These pipes are in poor condition and need to be replaced to reduce the risk of wastewater overflows and contamination of local waterways, including the Te Awa Kairangi – Hutt River.
Overview
Background

Wellington Water, on behalf of Hutt City Council, are upgrading wastewater pipes in Avalon, Lower Hutt, these pipes are in poor condition and need to be replaced.

Contact:

If you have any questions about this work, please contact:

Wellington Water, 04 912 4400

We’re about to start work upgrading wastewater pipes in Avalon, Lower Hutt. 

These pipes are in poor condition and need to be replaced to reduce the risk of wastewater overflows and contamination of local waterways, including the Te Awa Kairangi – Hutt River. 

We’re using a technique known as ‘pipe relining’, which minimises the need for open trenching, with most of the work happening underground.  

As part of these works, access onto private property is required. We’ll be in touch with impacted property owners to discuss this, and what to expect. 

Works will involve work in the road, and in berms. Traffic management is required, with partial lane closures required in some areas for safety reasons. 

We thank you for your understanding while crews complete this important work. 

CCTV investigations completed in 2015/16 showed that a significant portion of the public wastewater network in Avalon is in poor condition. This is a likely reason for wastewater overflows in recent years, and increases the risk of contamination of the Te Awa Kairangi – Hutt River and Waiwhetu Aquifer. 

We’re relining all the wastewater pipes shown in red. 

 The Avalon Wastewater Renewal Project is being completed in stages. Stage 1 and 2 are now complete, and we’re moving onto Stage 3. 

 The next phase of the project in a pipe relining project, which means no open trenching (open trenching was required for Stages 1 and 2). The use of trenchless technology will mean less disruption for residents. 

 We’ll be renewing around 7 kilometres of wastewater pipe. The 7km scope has been split into three smaller packages for delivery purposes (i.e., Stage 3a, Stage 3b and Stage 3c). Each package is estimated to take approximately six (6) months to complete.